bank barge boat canal England english footpath fun Great Britain green hobby leisure light moored narrowboat nature pastime path peaceful pleasure ripples river rural shade shadows shady Sussex towpath track tranquil trees verge water waterside animals bar beach coastline dogs explore exploring frame gravel groynes horizon January mammals pets plank post sea shingle shore smell sniff stones stony structure timber wave wavebreaks winter wooden worn action aerial aerofoils air blue cloud color colour diversity flock fly glide gliders group hang-gliders hill landscape on the move outdoor parachutes paragliders sky soar South Downs sport summer suspend aerofoil descend field glider hang-glider land landing parachute paraglider woodland activity countryside Cross-country cycle cycling cyclist destination direction energy exercise February fence goal journey keep-fit mountainbike off-road ride snow snowy travel bicycle bike holiday meadow move tour trail transport vacation view wheels wild hangglider